Or, to translate for the pilots: When you cross the WASIE fix, one the needles on the Altimeter thingy should point to a one and the others should point to some zeros, and the needle on the Verticle Speed Indicator thingy should point to the zero.

Well being a CTR controller in the Toroto FIR on VATSIM, I can tell you that the WASIE fix is on the Simcoe 2 Arrival at Toronto Pearson (CYYZ). When they say cross WASIE level, WASIE is just an intersection on the STAR (Standard Terminal Arrival). Depending on the active runway, aircraft will cross the waypoint at either 10000 and 250 knots, or 7000 and 210 knots. The phrase, "cross WASIE level" simply means descend and maintain 7000 or 10000 and be level at that altitude (not climbing or descending) by the time you pass the waypoint.

Most airliners, I believe, climb at maximum thrust, or a derated thrust still close to maximum thrust. Maintaining 250 knots below 10,000ft. To maintain 250 knots, the rate of climb varies. (Pitch controlls airspeed style).

after 10,000ft the Flight Management computer would influence the indicated airspeed to an optimum level. 300KIAS would be roughly the area for most aircraft for this stage in climb, give or take 30KIAS. It would maintain this untill transition to Mach speed controll.

Climbing at an increaced rate while in this mode would cause a reduction in speed. Increasing speed requires a reduction in climb rate, but no change in thrust would be required unless levelling off and maintaining a certain speed.